Model TI.31

Bimetal Thermometer

Stainless Steel & Wetted Parts, Process Grade Resettable

Selected documents
Sales contact

WIKA USA

Tel.:
1-888-945-2872
Fax:
1-770-338-5118
info@wika.com

Applications

  • General process instrumentation in the chemical, petrochemical, oil and gas, energy and water/wastewater industries
  • Temperature measurement in harsh and aggressive environments
  • With liquid dampening suitable for applications with high vibrations

Product features

  • Process grade design
  • Lower (bottom) connection with external reset
  • All stainless steel construction
  • Hermetically sealed per ASME B40.3
  • Accurate to 1% of full scale value
  • Available with silicone case filling for vibration

Specifications

Size
3” (76.2 mm) Type TI.31

Accuracy
+ 1.0% full scale value (per ASME B40.3, Grade A)

Ranges
From -100oF to (70oC) to + 1000oF (+540oC)
From -50oC to +550oC (as single scale)

Working Range
Steady: full scale value
Short time: 110% of full scale value

Over Range
Overlunder Range Protection
≤+500oF (+260oC): Temporary up to 50% of full scale
>500oF (+260oC): Continuous to +800oF (+427oC)
Intrmittent up to + 1000oF (+538oC)

Connection
Material: 304 stainless steel
Lower mount (LM), 1/2” NPT

Stem
Material: 304 stainless steel
Diameter: 1/4” (6.35 mm)
Length: 2½” to 72” (63.5 mm to 1,828.8 mm)

Measuring Element
Bi-metal helix

Case
Material: 304 stainless steel
Hermetically sealed per ASME B40.3 standard
Weather protection NEMA 4X (IP66)
External reset slotted hex head on back of case

Dial
White aluminum, dished, with black marking

Pointer
Black aluminum

Standard Scales
Single: Fahrenheit or Celsius
Dual: Fahrenheit (outer) and Celsius (inner)

Window Gasket
Neoprene
Silicone for range -100oF (-70oC) and ranges
>+550oF (+260oC)

Dampening
Inert gel to minimize pointer oscillation

Window
Flat instrument glass

Weight
11 oz. (311g) 3” dial
Add 1 oz. (28g) for every 2” (50mm) of stem length

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